SDF 2.001: SDF Reference: use Macro

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# 6.42. use Macro

## Interface

The general syntax is:

      !use filename [; filter] [; params]

The arguments are:

Name | Type | Default | Rule
filename | string |  |
filter | filter | sdf |
params | rest | _NULL_ |

See Understanding Macro Interfaces, if necessary.

## Description

The use macro loads a (library) module.

## Examples